Abstract
Get full access to this article
View all access options for this article.
References
1.
Bibby, B.G.
: Tufts Dental Outlook , 15 , 4 ,1942 ; J. A. D. A. , 31 : 317 , 1944
2.
Knudson, J.W.
and
Armstrong, W.D.
: Public Health Report , 58 , 1701 ; 1945
3.
McCauley, H.B.
and
Dale, P.P.
: J. D. Res. , 24 , 305 , 1945